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kubernets集群添加node节点
标签：roolcxsetram配置文件文章fas状态连接
一、添加集群里个节点的hostname并设置好对应主机名[root@node03 ~]# cat /etc/hosts
0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
1.1.206 master
1.1.207 node01
1.1.208 node02
1.1.207 git.qikqiak.com
1.6.95 node03二、关闭sepnux、关闭防火墙
systemctl stop firewalld
systemctl disable firewalld
setenforce 0
getenforce三、安装依赖包、安装docker-ce
yum install -y yum-utils device-mapper-persistent-data lvm2 unzip
yum-config-manager --add-repo http://mirrors.apyun.com/docker-ce/pnux/centos/docker-ce.repo
yum makecache fast
yum install https://download.docker.com/pnux/centos/7/x86_64/stable/Packages/docker-ce-sepnux-17.03.2.ce-1.el7.centos.noarch.rpm -y
yum install -y docker-ce
service docker start
systemctl enable docker四、从已经安装好的node上拷贝安装目录/opt/kubernetes、/opt/etcd/ssl及
docker.service,flanneld.service,kubelet.service,kube-proxy.service
scp /opt/etcd/ssl 10.1.6.95:/opt/etcd/ssl##此处需要etcd的证书，因为其他节点之前创建了/opt/etcd/ssl目录所以这里也创建这个
scp -r /opt/kubernetes 10.1.6.95:/opt/
scp -r /usr/pb/systemd/system/{docker.service,flanneld.service,kubelet.service,kube-proxy.service} 10.1.6.95:/usr/pb/systemd/system/五、修改以下配置文件
vim /opt/kubernetes/cfg/kubelet
修改 --hostname-override=10.1.6.95
vim /opt/kubernetes/cfg/kubelet.config
修改 address: 10.1.6.95
vim /opt/kubernetes/cfg/kube-proxy
修改 --hostname-override=10.1.6.95六、删除复制过来的证书，因为启动新的node时会自动去master下载自己的证书。
cd /opt/kubernetes/ssl
rm -rf kubelet*七、启动相关组件服务
systemctl daemon-reload
systemctl start flanneld
systemctl restart docker
systemctl start kubelet
systemctl start kube-proxy这时我们能看到flanned与docker 0是在同一网段内，说明没问题
docker0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet **172.17.64.1** netmask 255.255.255.0 broadcast 172.17.64.255
ether 02:42:ff:cb:17:0a txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 colpsions 0
ens192: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.1.6.95 netmask 255.255.255.0 broadcast 10.1.6.255
inet6 fe80::7d25:7f8:c33:c5a7 prefixlen 64 scopeid 0x20<pnk>
ether 00:0c:29:d8:bd:41 txqueuelen 1000 (Ethernet)
RX packets 329153 bytes 473368145 (451.4 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 190306 bytes 17351884 (16.5 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 colpsions 0
flannel.1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1450
inet **172.17.64.0 ** netmask 255.255.255.255 broadcast 0.0.0.0
inet6 fe80::c0b1:61ff:feb3:4168 prefixlen 64 scopeid 0x20<pnk>
ether c2:b1:61:b3:41:68 txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 8 overruns 0 carrier 0 colpsions 0八、master授权加入
1、我们用kubectl get csr查看新的node连接处于Pending状态。
2、绑定
kubectl certificate approve node-csr-XVzvHKozYbFEGjMrA-1kyUNAqjSXNnsklcXo6TaAMOw
3、再次查看csr状态处于approvied
[root@master ~]# kubectl get csr
NAME AGE REQUESTOR CONDITION
node-csr-XVzvHKozYbFEGjMrA-1kyUNAqjSXNnsklcXo6TaAMOw 46m kubelet-bootstrap Approved,Issued4、查看已经加入节点
[root@master ~]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
10.1.1.206 Ready <none> 307d v1.14.8
10.1.1.207 Ready <none> 307d v1.14.8
10.1.1.208 Ready <none> 307d v1.14.8
10.1.6.95 Ready <none> 21m v1.14.8参考文章:https://www.cnblogs.com/Dev0ps/p/10877049.html
kubernets集群添加node节点
标签：roolcxsetram配置文件文章fas状态连接
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